Demographics
Cortaillod has a population (as of December 2011) of 4,576. As of 2008, 19.0% of the population are resident foreign nationals. Over the last 10 years (2000–2010 ) the population has changed at a rate of 3.9%. It has changed at a rate of 0.6% due to migration and at a rate of 3.4% due to births and deaths.
Most of the population (as of 2000) speaks French (3,800 or 86.9%) as their first language, German is the second most common (171 or 3.9%) and Italian is the third (122 or 2.8%). There is 1 person who speaks Romansh.
As of 2008, the population was 48.7% male and 51.3% female. The population was made up of 1,734 Swiss men (38.4% of the population) and 466 (10.3%) non-Swiss men. There were 1,956 Swiss women (43.3%) and 362 (8.0%) non-Swiss women. Of the population in the municipality, 935 or about 21.4% were born in Cortaillod and lived there in 2000. There were 1,461 or 33.4% who were born in the same canton, while 917 or 21.0% were born somewhere else in Switzerland, and 997 or 22.8% were born outside of Switzerland.
As of 2000, children and teenagers (0–19 years old) make up 23.4% of the population, while adults (20–64 years old) make up 62.7% and seniors (over 64 years old) make up 13.9%.
As of 2000, there were 1,666 people who were single and never married in the municipality. There were 2,212 married individuals, 236 widows or widowers and 259 individuals who are divorced.
As of 2000, there were 1,851 private households in the municipality, and an average of 2.3 persons per household. There were 599 households that consist of only one person and 93 households with five or more people. In 2000, a total of 1,794 apartments (90.3% of the total) were permanently occupied, while 147 apartments (7.4%) were seasonally occupied and 45 apartments (2.3%) were empty. The vacancy rate for the municipality, in 2010, was 0.19%.
The historical population is given in the following chart:
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